# alsasrc

This element reads data from an audio card using the ALSA API.

## Example pipelines

     gst-launch-1.0 -v alsasrc ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=alsasrc.ogg

Record from a sound card using ALSA and encode to Ogg/Vorbis.

## Hierarchy

    GObject
        ╰──GInitiallyUnowned
            ╰──GstObject
                ╰──GstElement
                    ╰──GstBaseSrc
                        ╰──GstPushSrc
                            ╰──GstAudioBaseSrc
                                ╰──GstAudioSrc
                                    ╰──alsasrc

## Factory details

Authors: – Wim Taymans <wim></wim>

Classification: – `Source/Audio`

Rank – primary

Plugin – alsa

Package – GStreamer Base Plug-ins

## Pad Templates

### `src`

    audio/x-raw:
             format: { F64LE, F64BE, F32LE, F32BE, S32LE, S32BE, U32LE, U32BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S24LE, S24BE, U24LE, U24BE, S20_32LE, S20_32BE, U20_32LE, U20_32BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, S16LE, S16BE, U16LE, U16BE, S8, U8 }
             layout: interleaved
               rate: [ 1, 2147483647 ]
           channels: [ 1, 2147483647 ]

Presence – always

Direction – src

Object type – GstPad

## Properties

### card-name

    “card-name” gchararray

Human-readable name of the sound card

Flags : Read

### device

    “device” gchararray

ALSA device, as defined in an asound configuration file

Flags : Read / Write

Default value : default

### device-name

    “device-name” gchararray

Human-readable name of the sound device

Flags : Read

Default value : NULL

### use-driver-timestamps

    “use-driver-timestamps” gboolean

Use driver timestamps or the pipeline clock timestamps

Flags : Read / Write

Default value : true

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